Originally posted by Donald Laing Camera set to High ISO Auto and raw files converted in PDCU with Noise reduction left at auto settings that the programme selected for the 12800 ISO image. No noise reduction done in Photoshop where basic processing was to adjust brightness and tones with some mid-tone contrast increase used on plant image.
does anybody already tried to compare head-to-head Pentax K-1 vs Pentax K-5II (or better K-5IIs without AA filter) at high ISO? My subjective opinion is that difference at ISO 12800 is allmost inperceptible or very subjective. I have shots made at ISO 51200. Colors are bit different (better with K-1), but noise is very very similar.
By the way, PDCU and Adobe LR makes Noise reduction (NR) and Color noise reduction (CR) [at high ISO] by default.
You could try this link:
https://www.facebook.com/profile.php?id=100010126398187
Description is in lithuanian, but pictures are as follows (PSR - Pixel Shift resolution):
1. K-5II_ISO51200_NRoff+CRoff.
2. K-1_ISO51200_NRoff+CRoff_PSRoff.
3. K-1_ISO51200_NRoff+CRoff_PSRon.
4. K-5II_ISO51200_NR25+CR40_PSRoff.
5. K-1_ISO51200_NR25+CR40_PSRoff.
6. K-1_ISO51200_NR25+CR40_PSRon.
7. K-1 (left) comparison with K-5II in Adobe LR, without sharpening: K-1 vs K-5II_ISO51200_LR-CC_SharpeningOFF.
8. PSR (200 proc. magnification) with artifacts.